[EN] Diffraction at the upper edge of a two-dimensional periodic array of finite rigid cylinders immersed in air as well as the effect on its wave propagation properties are numerically and experimentally reported in this ...
Ferrando Martín, Vicente; Calatayud Calatayud, Arnau; Remón Martín, Laura; Monsoriu Serra, Juan Antonio; Pons-Martí, Amparo; Furlan, Walter D.(Universitat Politècnica de València, 2014-03-31)
[EN] In this work we introduce a virtual laboratory, APERIODIC DIFFRACT, developed in Matlab GUI (Graphical User Interface) as an informatics tool for teaching the diffractive properties of aperiodic gratings. This GUI ...
Monsoriu Serra, Juan Antonio; Calatayud Calatayud, Arnau; Remón Martín, Laura; Furlan, Walter Daniel; Saavedra, G.; Andrés Bou, Pedro(Institute of Electrical and Electronics Engineers (IEEE): OAJ, 2013-06)
The focusing properties of diffractive lenses designed using the Fibonacci sequence
are studied. It is demonstrated that these lenses present two equal intensity foci and
that the ratio of the two focal distances approaches ...
Moreno Sánchez, Benigno(Universitat Politècnica de València, 2014-11-28)
En el presente Trabajo Final de Grado, Desarrollo de un sistema TOFD
configurable, se desarrolla un sistema para la aplicación de la técnica
de Ensayos No Destructivos TOFD (Time of flight diffraction) o tiempo
de ...
Colleoni, Margherita Patrizia Maria(Universitat Politècnica de València, 2020-09-02)
[ES] En el presente trabajo, se investigan algunos aspectos de la interacción de los materiales dieléctricos con ondas de THz. La banda de THz, que incluye las frecuencias de 100 GHz a 30 THz, ha despertado un gran interés ...
Monsoriu Serra, Juan Antonio; Giménez Valentín, Marcos Herminio; Furlan, Walter Daniel; Barreiro, Juan Carlos; Saavedra, Genaro(IOP Publishing, 2015-11)
We present a simple diffraction experiment with m-bonacci gratings as a new
interesting generalization of the Fibonacci ones. Diffraction by these nonconventional
structures is proposed as a motivational strategy to ...
Sancho-Fornes, Gabriel; Avella-Oliver, Miquel; Carrascosa Rubio, Javier; Fernández-Sánchez, María Estrella; Brun, Eva M.; Maquieira Catala, Ángel(Elsevier, 2019)
[EN] One-dimensional photonic crystal slabs are periodic optical nanostructures that produce guided-mode resonance. They couple part of the incident light into the waveguide generating bandgaps in the transmittance spectrum, ...
[EN] In this letter, the improvement in focus by the use of a pupil mask produced in an acoustic mesoscale cuboid particle ¿lled with CO2 is reported. Thereby, the result shows that the pupil mask increases the sound ...
Blay Roger, José Rubén(Universitat Politècnica de València, 2021-01-12)
[ES] La búsqueda de nuevos compuestos químicos con propiedades específicas representa uno de
los retos más significativos, no sólo para la industria químico-farmacéutica, sino para el mundo
científico en general. Los ...
Bonache Bezares, Victoria; Salvador Moya, Mª Dolores; Busquets Mataix, David Jerónimo; Segovia-López, Francisco(MANEY PUBLISHING, 2009)
[EN] In this work ultrafine and nanocrystalline WC-Co mixtures were obtained by low energy milling in planetary ball mill. The effect of the processing conditions on the reduction and distribution of the grain sizes and ...
Calatayud Calatayud, Arnau; Ferrando Martín, Vicente; Gimenez Palomares, Fernando; Furlan, Walter Daniel; Saavedra, G.; Monsoriu Serra, Juan Antonio(Elsevier, 2013-01-01)
[EN] In this paper we present a novel family of zone plates with a fractal distribution of square zones. The focusing properties of these fractal diffractive lenses coined fractal square zone plates are analytically studied ...
Ruiz-Fuertes, Javier; Friedrich, A.; Gomis, O.; Errandonea, Daniel; Morgenroth, W.; Sans Tresserras, Juan Ángel; Santamaria-Perez, David(American Physical Society, 2015-03-30)
The pressure-induced phase transition of the multiferroic manganese tungstate MnWO4 is studied on single crystals using synchrotron x-ray diffraction and Raman spectroscopy. We observe the monoclinic P2/c to triclinic P ...
HgWO 4 at ambient pressure is characterized using a combination of ab initio calculations, X-ray diffraction and Raman scattering measurements. The effect of low pressure and temperature on the structural stability is ...
Ferrando Martín, Vicente; Calatayud Calatayud, Arnau; Andrés, P.; Torroba, Roberto; Furlan, Walter Daniel; Monsoriu Serra, Juan Antonio(Institute of Electrical and Electronics Engineers (IEEE): OAJ, 2014-02)
In this paper, we present a new kind of bifocal kinoform lenses in which the phase
distribution is based on the Fibonacci sequence. The focusing properties of these DOEs
coined Kinoform Fibonacci lenses (KFLs) are ...
Rubio Arjona, Lorenzo(Universitat Politècnica de València, 2011-12-09)
The figure shows the attenuation of the knife-edge diffraction in terms of the Fresnel diffraction parameter. Based on the geometrical parameters of the radio link (e.g., distances from the transmitter (TX) and receiver ...
Nicula, R.; Stir, M.; Wurm, A.; Catalá Civera, José Manuel; Ishizaki, K.; Vaucher, S.; Zhuravlev, E.; Schick, C.(Elsevier, 2011-11-10)
An alternative approach for microwave calorimetry is proposed which relies on the synchrotron radiation powder diffraction technique as well as on the Grüneisen formalism for the analysis of thermal expansion. Cobalt was ...
Machado-Olivares, Federico Jose; PRZEMYSLAW ZAGRAJEK; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio; WALTER DANIEL FURLAN(Institute of Electrical and Electronics Engineers, 2019)
[EN] We present a novel method for experimentally generating multiplexed THz vortex beams by using a single three-dimensional printed element that combines a set of radially distributed spiral phase plates, and a binary ...
Errandonea, Daniel; Gomis Hilario, Oscar; García-Domene, B.; Pellicer Porres, Julio; Katari, V.; Achary, S. N.; Tyagi, A. K.; Popescu, C.(American Chemical Society, 2013-11-04)
A new wolframite-type polymorph of InVO4 is identified under compression near 7 GPa by in situ high-pressure (HP) X-ray diffraction (XRD) and Raman spectroscopic investigations on the stable orthorhombic InVO4. The structural ...
García-Domene, B.; Sans Tresserras, Juan Ángel; Gomis, O.; Manjón Herrera, Francisco Javier; Ortiz, H. M.; Errandonea, Daniel; Santamaría Pérez, David; Martinez-Garcia, D.; Vilaplana Cerda, Rosario Isabel; Pereira, A. L. J.; Morales-Garcia, A.; Rodríguez Hernández, Plácida; Muñoz, Alfonso; Popescu, Catalin; Segura, A.(American Chemical Society, 2014-09-04)
High-pressure powder X-ray diffraction and Raman scattering measurements in cubic bixbyite-type indium oxide (c-In2O3) have been performed at room temperature. On increasing pressure c-In2O3 undergoes a transition to the ...